Machine for forming



(No Model.) 3 Sheets-Sheet 1. D. S. CHESEBRO.

I MACHINE FOR FORMING EARTHBN AND STONE WARE. No. 325,911. PatentedSept. 8; 1885.

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MACHINE FOR FORMING BARTHEN AND STONE-WARE- No. 825,911. P888888 Sept.8, 1885.

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MACHINE FOR FORMING EARTHEN AND STONE WARE.

No. 325,911. Patented Sept; 8, 1885.:

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PATENT OFFIcE.

DENISON s. oHEsEBao, or GEDDES, New YORK.

MACHINE-FOR FORMING EARTHEN AND STONE WARE.

SPECIFICATION forming part of Letters Patent No, 325,911, datedSeptember 8, 1885,.

. Application filed June 16,1885. (No model.)

To all whom it may concern.-

Be it known that I, DENISON S. CHEsE- BRO, ofv Geddes, in the county'ofOnondaga, in the State of New York, have invented new and usefulImprovements in Machines for Forming Earthen and Stone Ware, of whichthe following, taken in connection with the accompanying drawings, is afull, clear, and exact description; 7

. The object of this invention is to manufacture hollow ware fromtempered clay or other plastic material in an expeditious and a perfectworkman-like manner, and at a minimum A expenditure of manual labor.

The invention consists in a novel construotion andorganizationofmechanismsconstituting a machine for accomplishing theaforesaid object, as hereinafter fully described, and specifically setforth in the claims;

In the accompanying drawings, Fig. I is a side elevation of my inventionin position for forming the ware. Fig. II is a side elevation showingthe invention in position for finish; ing the interior of the ware. Fig.III is a front elevation of the machine in position for finishing theexterior of the ware. Fig. IV is a vertical section taken on line to m,Fig. I. Fig. V is an enlarged vertical section of the core around whichthelware is formed and the case which embraces and holds the warewhilethe core with its cutters cut out and trim lheinterior ofthe ware.FigrVI is a horizontal transverse section on line y y, Fig. V, and Fig.VII is an enlarged detached plan view of the adjustable latch.

Similar letters of reference indicate corresponding parts.

A represents the main supporting-frame of the machine, consisting ofastout iron standard, on the front of the lower portion of which isjournaled the upright shaft n of the turntable T.

The requisite rotary motion is imparted to the turn-table either by apulley, M, attached to the shaft n and. a belt or friction wheel runningon said pulley or by any other suitable and well-known means.

Central over the turn-table T is a core, 0, pivoted independently ofsaid table on the lower end of a shaft, a, which is journaled on aslide, H, moving in a vertical guide, G, on

the upper front portion of the frame A. Said slide H with the core 0 iscounterpoised by a weight, K, connected with the slide by cords orchains 0 running over pulleys I I, pivoted on the upper end of the frameA. The core O has its sides perforatedand provided with circumferentialflanges p p, for the purpose hereinafter eXplaine p To the lower end ofthe shaft 0 is rigidly attached a cutter, b, which is extended acrossthe bottom of thecoreO.

' Above the core is a yoke, c, rigidly at tached tothe shaft a, andtothe ends of said yoke and of the cutter b are attached verticalcutters e e, which are held contiguous to the flanges p p of the coreandstand clear of the perforated'body of the same, so that by sweepingthe aforesaid cutters around the core a body of clay will remain on theperforated portion of the core. The attachment of the cutters e e to theyoke 0 I make adjustable by connecting said cutters with hangers d d,having screw threaded shanks passing through the yoke, and provided withnuts by which to raise the hangers so as to impart the requisite tensionto the cutters e e. The cutter b, on'the lower end of the shaft a, and acollar, r, on said shaft at the upper end 'of the journal of the core,confine said core longitudinally on the shaft, and said shaft isconfined longitudi; nally on the slide H, so that by raising andlowering the latter the core 0 is raised and lowered correspondingly. ls

On the slide H is hinged a latch, s, provided with a s'tud-pin,i,bywhich it engages with a hole in the frame A, and therebyretains the saidslide and core 0 in its required position.

Since the position of the core over theturm table varies according tothe thickness of the bottom of the ware to be formed, I'make the latchadjustable by providing it with a longitudinal slot for the reception ofthe stud-pin t, which is screw-threaded, and clamped in position by anut on said stud-pin at the back; of the latch, as illustrated in Fig.VII of the drawings. By shifting the stud-pin z'in the" slotof the latchthe slide H can be locked to retain the core 0 at agreater or; lesselevation above the turn-table.

The shaft a is provided with a square or Ico angular rigid collar, 25,and on the slide H is hinged a clutch, a, which is adapted to interlockwith the collar t and thereby restrain the rotation of the shaft a.

At the side or back of the turntable T isa radial guide, N, on the frameA, and in said guide moves a slide, L, to the end of which, adjacent tothe turn-table, is attached a tangential guide, and back of said guideare vertical rollers 11 h, pivoted on the slide L.

On the guide g is mounted removably a breast, B, upon which to place thematerial, which is to form the body or vertical sides of the ware, therollers h h serving to sustain said breast vertically while sliding italong on the guide 9, and pressing the material onto the core 0, ashereinafter described. By means of a lever, B, pivoted to the base ofthe frame A and to the slide L, the latter is moved toward and from theturn-table.

The latch Zis pivoted on the frame A, and has a lug, i, adjustablyconnected to it, in the same manner as the attachment of the lug i ofthe latch s, hereinbefore described. By means of this latch lthe slide Lis retained in its required position for pressing the material onto thecore, as aforesaid.

On the slide L is a guide, S, in which moves a slide, 1?, and to the endof the latter nearest the turn-table is attached a scraping plate, m,the edge of which is shaped accord ing to the vertical outline of theexterior :of the ware to be formed on the turn-table.

D represents a metallic case composed of detachable sections, and havingits interior shaped to coincide and fit closelyto theexte rior of theware to be formed. It is lined with plastenof-paris to preventtheplastic material from adhering to it. A ring, E, clamped dc tachablyaround the exterior of said case, serves to hold it intact whenrequired.

The operation of my invention is as follows: The turn-table T being setin rotary niotion, and the core 0 elevated from the table as illustratedin Fig. II of the drawings, the operator places upon the turn-table adisk of material of fully the thicknessto be given to the bottom of theware to be formed. Then the clutch u is thrown out of engageinent wit-hthe collar t, and the core 0 is drawn down onto the aforesaid disk ofmaterial and retained there by the engagement of the latch s with theframe A. The lower cutter, b, being pressed into the disk of material,causes the core to rotate with the turntable. Then an elongated disk ofmaterial of sufficient length to reach around the core 0 is placed onthe breast B, which is removed from the guide 9 and sprinkled witheither fine sand or ground burned clay to prevent the material fromadhering to it. Then the breast B, with the material resting thereon, ismounted endwise on the guide 9 and moved along on the same, the slide Lhaving previously been set in position to hold the breast so as to pressthe material onto the core 0 and against the bottom disk of material.During the rotation of the turntable and core and the movement of thebreast B along the guide 9 the material takes hold in the perforationsof the core, and is thereby drawn away from the breast B and made toadhere to the core to form the body of the'wa're, as represented bydotted lines in Fig. I of the drawings. The breast B being withdrawn,the slide P is next moved toward the turntable to bring the scraper mtooperate on the exterior'of the body of material enveloping the core, asrepresented by dotted lines in Fig. I of the drawings, said scraperimparting the final shape to the exterior of the ware in process ofbeing formed. Both slides L and P are then retracted from theturn-table, and the case Dis placed around the body formed as aforesaid,and the Clamp: ing-ring applied to the case. Then the clutchto is throwninto engagement with the collar t,

to prevent rotation of the shaft a, thereby holding the cutters e e andb stationary while the turntable with the plastic body is rotated, thecase I) serving to sustain said body laterally while the aforesaidcutters cut the core 0 loose from the enveloping materialiand trim theinterior of the plastic body. core 0 is raised out of the said body, andthe latter is removedfroni the turn-table by means of the inclosing-caseD. In cutting the core loose as aforesaid a layer of material isretained on the perforated portion of the core, which layer serves as'afacing for theeadhesion of the disks of vmaterial applied thereto by thebreast 13 during the successive operations of the machine. 7

Having described my invention,what I claim as new, and desire to secureby Letters Patent,

1. A machine for forming hollow ware from plastic material, comprising aturn-table upon which to revolve the material, and a pivoted corearranged over the center of the turntable to revolve with the same andreceive around its exterior the material for the body Then the of theware and sustain said material while.

pivoted core, a breast arranged movable at h the side of the core toapply thereto the material carried on said breast, substantially asdescribed. I

3. In combination with the turn-table and pivoted core, a tangentialguide at the side of the turn-table,and a breast mounted movably on saidguide to apply to the core the mate rial carriedon said breast,substantially as set forth and shown.

4:. In combination with the turn-table and pivotedcore, a tangentialguide at the side "of the turn-table, the breast mounted movably on saidguide, and vertical rollers back of the guide to sustain the breast inits vertical po: sition, substantially as described and shown.

5. In combination with the turntable and core, a cutter extended acrossthe bottom of the core for forming the interior bottom of the ware,substantially as specified.

6. In combination with the turn-tableand core, cutters arranged at thesides of the core to cut the same loose from the enveloping ma; terial,substantially asset forth.

7. In combination with the turntable, a vertical shaft arranged over thecenter of the turntable, the core pivoted on said shaft, a yoke fastenedto said shaft above the core, a horizontal cutter extended across thebottom of the core and attached to the aforesaid shaft, cutters at theoutside of the core attached to the ends of the horizontal cutter andyoke, and

a clutch forrestraining the rotation of the ver tical shaft,substantially as described and shown.

8. In combination with theturlrtable, a vertical guide, a slide in saidguide, and the core arranged over the center of theturn-ta ble andcarried by the aforesaid slide, substantially as and for the purposespecified. 9. In combination with the turn-table, the

core 0, having perforations in its sides, substantially as and for thepurpose set forth.

10. In combination with the turn-table,the'

vertical shafta, arranged central over the turn-table, the core 0,pivoted 011 said shaft,

the cutter b, rigidly secured to the lower end of the shaft, the yoke e,rigidly attached to the shaft above the core, hangers d d, havingscrewthreaded shanks extending through the ends of the yoke,adjusting-nuts on said shanks, and the cutters e e,attached to the endsof the cutter b and to the hangers d d, substantially as described andshown,

11. In combination with the turn-table, the core O,pivoted central oversaid table and provided with circumferential flanges andgperforations,and the straight cutters e e at the outside of said core, contiguous tothe flanges thereof and clear of the perforated body of the same,whereby a body of material is maintained on the core, substantially asset forth.

12. In combination with the turn-table, the vertical guide G, the slideH, pulleysII, counter-weight K, connected with the slide by cords orchains running over the pulleys, the vertical'shaft a, journaled on theslide, the angular collar f on the shaft, theclutch connected movably tothe slide, the core G, pivoted on the shaft a, the cutter b and yoke c,rigidly attached to the shaft, respectively, beneath and above the core,and the cutters e 6, attached to the ends of the cutter b and yoke a,substantiall y as described and shown. a

13. In combination with the turn-table and core, a slide arrangedradially at the side of the turn-table, a tangential guide attached tothe slide, and a breast mounted movably on said guide to apply to thecore the material for the body of the ware to be formed, substantiallyas described and shown.

14;In combination with the turn-table and core 0, the slide L, arrangedradially at the side of the turn-table, the tangential guideg, attachedto the slide, the breast B, mounted on the guide, and the rollers h h,pivoted on the slide back of the guide 9, substantially as described andshown. i

15. In combination with the turn-table and core, the frame A,providedwith a radial guide, N the slide L, provided with the locking eye i, theguide attached to said slide, the breast B, mounted on the guide 9,rollers h h, pivoted on the slide back of guide 9, and the latch Z,having the lug Z adj ustably connected thereto, substantially as and forthe purpose set forth. 16. In combination with the turntable and core,the slide P,and the scraper m, attached to said slide, substantially asand for the purpose specified.

17. In combination with the turntable, the core C, pivoted over theturn-table independently thereof, cutters b e 0 across the bottommounted removably on the turn-table and embracing the materialsurrounding the core, substantially as and for the purpose set forth.

18. In combination with the turn-table, the core 0, carried on avertically-movable shaft, (1, cutters'be e underneath and at the sidesof the core, and the case D, mounted removably on the turn-table andembracing the material surrounding the core, substantially as and forthe purpose set forth.

DENISON S. CHESEBRO. Witnesses:

O. BENDIXON, F. H. (lanes.

and up the sides of the core, and the case D,

